(19)

(11)

EP 2 611 538 A2

(12)

(88) Date of publication A3: 24.05.2012 (43) Date of publication: 10.07.2013 Bulletin 2013/28 (21) Application number: 11822040.9 (22) Date of filing: 14.07.2011

(51) International Patent Classification (IPC):  B01J 31/24(2006.01) C07C 47/02(2006.01) C07C 45/50(2006.01) (86) International application number: PCT/KR2011/005173 (87) International publication number: WO 2012/030065 (08.03.2012 Gazette 2012/10)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 08.04.2011 KR 20110032566 02.09.2010 KR 20100085890 (71) Applicant: LG Chem, Ltd. Youngdungpo-gu Seoul 150-721 (KR)	(72) Inventors: CHOI, Jae-Hui Daejeon 305-761 (KR) KO, Dong-Hyun Daejeon 305-759 (KR) KWON, O-Hak Daejeon 302-739 (KR) EOM, Sung-Shik Daejeon 305-340 (KR) HONG, Moo-Ho Daejeon 301-784 (KR) YANG, Hye-Won Seoul 138-788 (KR) (74) Representative: Goddar, Heinz J.  Boehmert & Boehmert Pettenkoferstrasse 20-22 80336 München 80336 München (DE)